Service difficulty report · Skin · Boeing 7377H4

Difficulty date
December 5, 2024
Submitted
December 23, 2024
Operation
Air carrier
Aircraft
N933WN
Make and model
Boeing 7377H4
Aircraft serial
36640
Aircraft time
50,478 hours, 30,801 cycles
Part
Skin
Condition
Cracked
Location
Zn 300 Stabilize
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CRACK FOUND ON RH HORIZONTAL STABILIZER LOWER IN-SPAR SKIN AT STATION 184.70 RIB 10 FROM FRONT SPAR INB SIDE OF RIB LENGTH APPROX=0.525. 2024-748256<[01] TOOL USED: ET EQUIPMENT; P/N: NORTEC600D; S/N: 240497907; CAL DUE DATE: 27-AUG-25;[02] TOOL USED ON STEP 7: ET EQUIPMENT; P/N: NORTEC 600D; S/N:200053402; DUE DATE: 16-SEP-25.;[03] TOOL USED: EDDY CURRENT EQUIPMENT; P/N: NORTEC 600D; S/N: 220273012; DUE DATE: 09 JAN 25.;[04] REPAIRED RH HOR STAB - LOWER SKIN - BTW SSTA 175.50 AND SSTA 203.10 IAW EA 24-155-03461 AND EA 24-155-03461-WIP1 SEE INDIVIDUALS SIGN OFF BELOW;[05] CERTIFIED RII MAJOR REPAIR WORK PERFORMED. <BR>SEE INDIVIDUAL SIGN OFF BELOW.

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